114 NEW YORK STATE MUSEUM 
of Orthodesma? sp. 
Plate 1, figure 5 
Fragments of a shell were found not admitting of determination 
but having the general characteristics of Orthodesma or Rhytimya. 
Shell long compared with its height. Anterior portion of the shell 
set off by a shallow but distinct sulcus. Hinge-line not preserved. 
Left valve convex, ending posteriorly in a prominent umbonal ridge. 
Distinct concentric folds, which are stronger in front. Left valve 
only preserved. 
One of the smaller specimens has the following dimensions: 
length 26 mm; height about 18 mm. 
Y  Lingula vernoni nov. 
Plate 1, figures I and 2 
Shell small, sides nearly straight and parallel, beak subacute, an- 
terior margin subquadrate. Much resembles L. clintoni but 
differs in the total absence of radiating striae. Many fine con- 
centric growth-lines. Faint traces of a median septum visible. 
One pedicle valve only found with portions of the original shell. 
Length 10.5 mm; width 5.5 mm. 
v¥ Cornulites hopkinsi nov. 
r Plate 1, figure 3 
Cornulites arcuatus Conrad in the Guelph fauna is 
briefly described thus: “Curved, rapidly attenuate; the base of each 
ring contracted, the upper edge angular.”’ (Clarke and Ruedemann, 
1903.) 
The new species closely resembles C.arcuatus, differing mainly 
in its more abrupt taper and possible greater angularity of upper 
edge of ring. Doctor Ruedemann thinks that a new specific name 
is justified. 
Length 18 mm; greatest observed width about 7 mm. 
Named after Dr Thomas Cramer Hopkins of Syracuse Uni- 
versity. 
Acknowledgments. The writer wishes to thank Dr Rudolf 
Ruedemann for help in the identifications. Dr Burnett Smith of 
Syracuse University has made valuable suggestions. N. E. Weis- 
bord of Corne!l University and Edwin J. Stein of Albany made 
the photographs. 
